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CN107190138A - A kind of method and device that manganese-silicon is prepared using poor ferrous manganese ore - Google Patents

A kind of method and device that manganese-silicon is prepared using poor ferrous manganese ore Download PDF

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Publication number
CN107190138A
CN107190138A CN201710426482.0A CN201710426482A CN107190138A CN 107190138 A CN107190138 A CN 107190138A CN 201710426482 A CN201710426482 A CN 201710426482A CN 107190138 A CN107190138 A CN 107190138A
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CN
China
Prior art keywords
manganese
silicon
manganese ore
poor
ore
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710426482.0A
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Chinese (zh)
Inventor
吴佩佩
王敏
王福佳
王健月
古明远
曹志成
吴道洪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Province Metallurgical Design Institute Co Ltd
Original Assignee
Jiangsu Province Metallurgical Design Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Province Metallurgical Design Institute Co Ltd filed Critical Jiangsu Province Metallurgical Design Institute Co Ltd
Priority to CN201710426482.0A priority Critical patent/CN107190138A/en
Publication of CN107190138A publication Critical patent/CN107190138A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00Preliminary treatment of ores or scrap
    • C22B1/14Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24Binding; Briquetting ; Granulating
    • C22B1/2406Binding; Briquetting ; Granulating pelletizing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • C21B13/006Starting from ores containing non ferrous metallic oxides
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00Preliminary treatment of ores or scrap
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B47/00Obtaining manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00General methods of reducing to metals
    • C22B5/02Dry methods smelting of sulfides or formation of mattes
    • C22B5/04Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C22/00Alloys based on manganese
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses a kind of method for preparing manganese-silicon using poor ferrous manganese ore, comprise the steps of:Poor ferrous manganese ore is dried and crushed;Poor ferrous manganese ore after crushing mixes with silica flour and quick lime and mixed material pelletizing is formed into pelletizing;Pelletizing is distributed into heating response in molten point of stove of combustion gas and obtains silicomangan.The present invention also discloses a kind of device for performing the above method.The processing problem of low-grade ferrous manganese ore is solved by the use of the above method and device, realize low-grade ferrous manganese ore manganese and iron is separately recovered utilization.

Description

A kind of method and device that manganese-silicon is prepared using poor ferrous manganese ore
Technical field
The present invention relates to field of metallurgy, more particularly to a kind of method and device that manganese-silicon is prepared using poor ferrous manganese ore.
Background technology
The smelting to manganese-silicon has had for a long time and in-depth study both at home and abroad, and technologic improvement is favourable with improving In every economic difficulty.The raising of technical indicator so reach it is energy-saving and improve product quality purpose.Manganese silicon to be made is closed Golden smelting technique is further lifted to a new height, it is necessary to high energy consumption, product present in being smelted to current manganese-silicon The problems such as quality is unstable further solves.
Silicomangan is the important alloy of steel-making, and usage amount is maximum, is the important alloy for improving steel mechanics performance.China Annual production ferroalloy is ten thousand tons about more than 3000, wherein 98% ferroalloy is using mineral hot furnace production, i.e., using mineral hot furnace by ore Pyroreaction is heated to coke.Mineral hot furnace heating is that these raw materials are heated into high temperature by electrode, and need to be heated to 1600 More than DEG C, but these materials conductives and heat transfer efficiency are low, and heating process power consumption is big, firing rate is slow, and the production cycle is long.
The content of the invention
In order to solve the above-mentioned problems in the prior art, the present invention proposes one kind and prepares manganese silicon using poor ferrous manganese ore The method and device of alloy, the present invention prepares manganese-silicon using poor ferrous manganese ore instead of high manganese ore, while solving industrial silica fume Store up problem, make full use of silica flour characteristic carry out reduction melting.
The method that the present invention is used is as follows:
A kind of method for preparing manganese-silicon using poor ferrous manganese ore, is comprised the steps of:
Step one, poor ferrous manganese ore is dried and crushed;
Step 2, the poor ferrous manganese ore after being crushed in step one is mixed with silica flour and quick lime and by mixed material pelletizing Form pelletizing;
Step 3, is distributed into heating response in molten point of stove of combustion gas by pelletizing and obtains silicomangan.
Further, the component of following mass fraction is contained in poor ferrous manganese ore:Manganese is 15-20%, and iron is 28-35%, oxygen Change calcium is 2-4%, and magnesia is 0.5-1%, and silica is 13-16% and alundum (Al2O3) is 4-8%.
Further, poor ferrous manganese ore is dried to moisture in step one and is less than 1%, and be crushed to granularity and be less than 2mm。
Further, manganese is present in manganese carbonate form in ferrous manganese ore.
Further, in step 2 poor ferrous manganese ore, silica flour and quick lime according to mass ratio 100:(18-28):(20-38) Mixed;Preferably, poor ferrous manganese ore, silica flour and Lime Quality ratio are 100:(23-26):(25-35).
Further, pelletizing diameter 10mm-15mm.
Further, silica flour is silicon ash and/or industrial silica fume.
Further, the temperature of molten point of stove of combustion gas is 1450-1550 DEG C, in molten point of stove of combustion gas, is contained in poor ferrous manganese ore Manganese carbonate decompose generation MnO, MnO and SiO2Generation manganous silicate is combined first.When temperature is more than 1450 DEG C, in pelletizing Silicon starts fusing, and quick lime plays a part of flux, SiO can be replaced under the high temperature conditions2Manganous oxide in MnO.Silicon Ferriferous oxide can be reduced under the high temperature conditions, silicon can generate MnSi and oxygen with manganous oxide reaction, and oxygen exists Atmosphere can be adjusted in molten point of stove of combustion gas, it is class oxidizing atmosphere to make the molten point stove of combustion gas, it is to avoid the volatilization loss of manganese.Si reduction iron It is exothermic reaction, the molten point stove of now combustion gas can close burner, and molten bath is reacted by the heat of itself.In course of reaction Middle iron is reduced first, and most iron sinks to burner hearth bottom first, in reduction process, and silicomanganese formation MnSi alloys are enriched to Iron liquid upper strata, metallurgical slag floats over silicomangan upper strata.In order to avoid the volatilization of manganese, duration of heat control 30min-55min it Between.Finally, manganese content 60-65%, silicone content 22-27% silicomangan can be obtained by melting, while iron can be obtained The pig iron of content more than 95%.
Further, the mass percent of the silicon in silica flour is more than 90%.
Further, the heating response time in step 3 is 30-55min.
The invention also discloses a kind of device for performing the above method, including:
Dryer, dryer has charging aperture and discharging opening;
Disintegrating machine, disintegrating machine has charging aperture and discharging opening, and the discharging opening of dryer is connected with the charging aperture of disintegrating machine;
Batch mixer, batch mixer has is provided with one or more transmission above charging aperture and discharging opening, batch mixing machine inlet Device, the material that one or more conveyers are used in the material for discharging discharge hole of crusher and conveyer top feed bin It is sent in batch mixer;
Pelletizer, pelletizer has feeding mouth and discharging opening, and the outlet of batch mixer is connected with the entrance of pelletizer;
Molten point of stove of combustion gas, the molten point stove of combustion gas has charging aperture and a discharging opening, the charging aperture of molten point of stove of combustion gas and pelletizer Discharging opening is connected.
Further, the feed bin above conveyer is silica flour feed bin and quick lime feed bin.
Further, the molten point furnace interior of combustion gas is provided with molten bath.
Further, the molten point stove of combustion gas is provided with burner.
Further, it is provided with agitating device in batch mixer.
Further, conveyer is conveyer belt.
By using above-mentioned technical proposal, following many beneficial effects are achieved:
(1) the processing problem of low-grade ferrous manganese ore is solved.
(2) reducing agent is done using silicon, can obtains being easier to obtain manganese-silicon.
(3) it is closed melting in smelting process to melt a point stove, while the speed of Si reduction iron and manganese, it is to avoid manganese Volatilization loss.
(4) utilization is separately recovered by what molten point of one equipment of stove of combustion gas realized low-grade ferrous manganese ore manganese and iron.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will more in the description carried out to embodiment is combined with accompanying drawing Plus substantially and be readily appreciated that, wherein:
Fig. 1 shows that the poor ferrous manganese ore of utilization according to embodiments of the present invention prepares the flow signal of the method for manganese-silicon Figure.
Fig. 2 shows the schematic diagram of the device for preparing manganese-silicon according to embodiments of the present invention.
Embodiment
It should be appreciated that shown embodiments of the invention are merely illustrative in the exemplary embodiment.Although in this hair Only a small number of embodiments are described in detail in bright, but those skilled in the art are readily appreciated that and depart from the present invention in not essence In the case of the teaching of theme, a variety of modifications are feasible.Correspondingly, all such modifications should all be included in the present invention's In the range of.Without departing from the spirit of the invention, design, operating condition and ginseng that can be to following exemplary embodiment Number etc. makes others and replaces, changes, changes and delete.
Embodiment one
As shown in Figures 1 and 2, the ferrous manganese ore composition in the present embodiment is:Iron 28%, manganese 15%.At step S101, make Ferrous manganese ore is dried to moisture with dryer 1 and is less than 1%, and below 2mm is crushed to using disintegrating machine 2.Then exist Step 102 place, by dry and it is broken after ferrous manganese ore batch mixer 5 is sent to by conveyer, while by feed bin 3 and feed bin 4 In silica flour and quick lime be sent to batch mixer 5 also by conveyer.Wherein, ferrous manganese ore, silica flour and the life in batch mixer 5 Lime is according to 100:23:25 ratio mixing and the pelletizing formation pelletizing in pelletizer 6.At step S103, the pelletizing made Put into molten point of stove 7 of combustion gas and carry out melting, the temperature control of molten point of stove of combustion gas is in 1480 ± 10 DEG C, smelting time 35min.Through Manganese content 62% may finally be obtained by crossing smelting, and the manganese-silicon of silicone content 23.7% can also obtain the life of iron content 95.5% Iron.
Embodiment two
As shown in Figures 1 and 2, the ferrous manganese ore composition in the present embodiment is:Iron 34%, manganese 20%.At step S101, make Ferrous manganese ore is dried to moisture with dryer 1 and is less than 1%, and below 2mm is crushed to using disintegrating machine 2.Then exist Step 102 place, by dry and it is broken after ferrous manganese ore batch mixer 5 is sent to by conveyer, while by feed bin 3 and feed bin 4 In silica flour and quick lime be sent to batch mixer 5 also by conveyer.Wherein, ferrous manganese ore, silica flour and the life in batch mixer 5 Lime is according to 100:25:30 ratio mixing and the pelletizing formation pelletizing in pelletizer 6.At step S103, the pelletizing made Put into molten point of stove 7 of combustion gas and carry out melting, the temperature control of molten point of stove of combustion gas is in 1500 ± 10 DEG C, smelting time 40min.Through Manganese content 63.8% may finally be obtained by crossing smelting, and the manganese-silicon of silicone content 25.6% can also obtain iron content 96.7% The pig iron.
Embodiment three
As shown in Figures 1 and 2, the ferrous manganese ore composition in the present embodiment is:Iron 32%, manganese 19%.At step S101, make Ferrous manganese ore is dried to moisture with dryer 1 and is less than 1%, and below 2mm is crushed to using disintegrating machine 2.Then exist Step 102 place, by dry and it is broken after ferrous manganese ore batch mixer 5 is sent to by conveyer, while by feed bin 3 and feed bin 4 In silica flour and quick lime be sent to batch mixer 5 also by conveyer.Wherein, ferrous manganese ore, silica flour and the life in batch mixer 5 Lime is according to 100:26:33 ratio mixing and the pelletizing formation pelletizing in pelletizer 6.At step S103, the pelletizing made Put into molten point of stove 7 of combustion gas and carry out melting, the temperature control of molten point of stove of combustion gas is in 1530 ± 10 DEG C, smelting time 50min.Through Manganese content 62.2% may finally be obtained by crossing smelting, and the manganese-silicon of silicone content 27.3% can also obtain the life of iron content 97% Iron.
These are only presently preferred embodiments of the present invention, not for limit the present invention practical range;If not departing from this The spirit and scope of invention, modify or equivalent substitution to the present invention, all should cover the protection in the claims in the present invention Among scope.

Claims (10)

1. a kind of method for preparing manganese-silicon using poor ferrous manganese ore, it is characterised in that comprise the steps of:
Step one, the poor ferrous manganese ore is dried and crushed;
Step 2, the poor ferrous manganese ore after being crushed in step one is mixed with silica flour and quick lime and mixed material pelletizing is formed Pelletizing;
Step 3, is distributed into heating response in molten point of stove of combustion gas by the pelletizing and obtains silicomangan.
2. the method according to claim 1 for preparing manganese-silicon using poor ferrous manganese ore, it is characterised in that the poor ferromanganese Contain the component of following mass fraction in ore deposit:Manganese is 15-20%, and iron is 28-35%, and calcium oxide is 2-4%, and magnesia is 0.5- 1%, silica is 13-16% and alundum (Al2O3) is 4-8%.
3. the method according to claim 1 for preparing manganese-silicon using poor ferrous manganese ore, it is characterised in that the step 2 In poor ferrous manganese ore, silica flour and quick lime according to mass ratio 100:(18-28):(20-38) is mixed.
4. the method according to claim 1 for preparing manganese-silicon using poor ferrous manganese ore, it is characterised in that the silica flour is Silicon ash and/or industrial silica fume.
5. the method according to claim 1 for preparing manganese-silicon using poor ferrous manganese ore, it is characterised in that the combustion gas is melted The temperature for dividing stove is 1450-1550 DEG C.
6. the method according to claim 1 for preparing manganese-silicon using poor ferrous manganese ore, it is characterised in that in the silica flour The mass percent of silicon is more than 90%.
7. the method according to claim 1 for preparing manganese-silicon using poor ferrous manganese ore, it is characterised in that the step 3 In the heating response time be 30-55min.
8. the method according to claim 1 for preparing manganese-silicon using poor ferrous manganese ore, it is characterised in that the step one Middle dry the poor ferrous manganese ore to moisture is less than 1%.
9. a kind of poor ferrous manganese ore of utilization implemented any one of claim 1-8 prepares the device of the method for manganese-silicon, Characterized in that, described device includes:
Dryer, the dryer has charging aperture and discharging opening;
Disintegrating machine, the disintegrating machine has charging aperture and discharging opening, the charging of the discharging opening of the dryer and the disintegrating machine Mouth is connected;
Batch mixer, the batch mixer has charging aperture and discharging opening, and the batch mixing machine inlet top is provided with one or more Conveyer, one or more of conveyers are used for the material and the conveyer for discharging the discharge hole of crusher Material in the feed bin of top is sent in the batch mixer;
Pelletizer, the pelletizer has feeding mouth and discharging opening, the outlet of the batch mixer and the entrance phase of the pelletizer Even;
Molten point of stove of combustion gas, the molten point stove of the combustion gas has charging aperture and a discharging opening, the charging aperture of molten point of stove of the combustion gas with it is described The discharging opening of pelletizer is connected.
10. device according to claim 9, it is characterised in that the molten point furnace interior of the combustion gas is provided with molten bath.
CN201710426482.0A 2017-06-08 2017-06-08 A kind of method and device that manganese-silicon is prepared using poor ferrous manganese ore Pending CN107190138A (en)

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Application Number Priority Date Filing Date Title
CN201710426482.0A CN107190138A (en) 2017-06-08 2017-06-08 A kind of method and device that manganese-silicon is prepared using poor ferrous manganese ore

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114015873A (en) * 2021-09-18 2022-02-08 昆明理工大学 A method for preparing manganese-silicon alloy from lithium ore and enriching lithium
CN115161498A (en) * 2022-08-19 2022-10-11 宁夏森源重工设备有限公司 Process for producing manganese metal by large-scale submerged arc furnace

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1912159A (en) * 2006-08-17 2007-02-14 偏关县晋电化工有限责任公司 Production method of silicomangan of sintering powder by rotary kiln and hot filling in ore-smelting electric furnace
CN102766715A (en) * 2012-07-27 2012-11-07 胡长春 Slag-free production process of ilmenite
CN103695596A (en) * 2013-12-05 2014-04-02 广西敏诚矿业有限公司 Recycling method for producing silicomanganese alloy and medium and low carbon ferromanganese
CN106086275A (en) * 2016-08-05 2016-11-09 江苏省冶金设计院有限公司 Point stove and the method carrying out metallurgy with it are melted in a kind of combustion gas with blowing device
CN106319232A (en) * 2016-08-18 2017-01-11 江苏省冶金设计院有限公司 Method and system for processing zinc volatilization kiln slag
CN206986249U (en) * 2017-06-08 2018-02-09 江苏省冶金设计院有限公司 A kind of device that manganese-silicon is prepared using poor ferrous manganese ore

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1912159A (en) * 2006-08-17 2007-02-14 偏关县晋电化工有限责任公司 Production method of silicomangan of sintering powder by rotary kiln and hot filling in ore-smelting electric furnace
CN102766715A (en) * 2012-07-27 2012-11-07 胡长春 Slag-free production process of ilmenite
CN103695596A (en) * 2013-12-05 2014-04-02 广西敏诚矿业有限公司 Recycling method for producing silicomanganese alloy and medium and low carbon ferromanganese
CN106086275A (en) * 2016-08-05 2016-11-09 江苏省冶金设计院有限公司 Point stove and the method carrying out metallurgy with it are melted in a kind of combustion gas with blowing device
CN106319232A (en) * 2016-08-18 2017-01-11 江苏省冶金设计院有限公司 Method and system for processing zinc volatilization kiln slag
CN206986249U (en) * 2017-06-08 2018-02-09 江苏省冶金设计院有限公司 A kind of device that manganese-silicon is prepared using poor ferrous manganese ore

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114015873A (en) * 2021-09-18 2022-02-08 昆明理工大学 A method for preparing manganese-silicon alloy from lithium ore and enriching lithium
CN115161498A (en) * 2022-08-19 2022-10-11 宁夏森源重工设备有限公司 Process for producing manganese metal by large-scale submerged arc furnace
CN115161498B (en) * 2022-08-19 2024-04-12 宁夏森源重工设备有限公司 Production process for producing manganese metal by large submerged arc furnace

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